PORTLAND, Maine (AP) — The National Transportation Safety Board arrived Tuesday to begin investigations at a Maine airport where a business jet crashed during takeoff, killing all six people on board. The Paris-bound Bombardier Challenger 600 flipped over and burned on takeoff at Bangor International Airport around 7:45 p.m. Sunday night as the nation’s massive winter storm was beginning to reach the area. It remained unclear on Tuesday if the weather or cold played a role in the crash as investigators were just beginning their work. Experts say the weather and questions about whether ice accumulating on the wings kept the plane from getting airborne — as has happened at least twice before on that plane model — will likely be an initial focus by the NTSB. However, the agency will consider all possible factors. The FAA released an updated accident statement on Tuesday that said the six people on board died, and that number included four passengers and two crew members. Collins’ social media posts show her work organizing parties and events in Italy, Hawaii and elsewhere, for clients that included Arnold and Itkin Trial Lawyers, the Houston law firm linked to the plane’s registration. Collins, who was married with children and grandchildren, had also been helping plan her daughter’s wedding set for this year, he said. One of the law firm’s founding partners is listed as the registered agent for the company that owns the plane. The firm has so far declined to identify the passengers or comment on the crash. A relative of the pilot has identified him as Jacob Hosmer, a licensed flight instructor and the managing member of Platinum Skies Aviation LLC. The Bombardier Challenger 600 is well-known for its configuration for 9 to11 passengers and has a history of problems with icing on takeoff, which can cause serious safety concerns, stressing the need for proper de-icing procedures before flights.